Grain-binder



(No Model.) Q 2 Sheets-Sheet 1. A. TETRA'U LT.

GRAIN BINDER.

N0. 386,905. Patented July 31, 1888.

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(NoHodeL) I 2 Sheets-Sheet 2. A. TETRAULT.

GRAIN BINDER.

No, 386,905. Patented 'xgm a 7mm? UNITED STATES PATENT OFFICE.

AMEDEE TETRAULT, OF ST. PAUL, MINNESOTA.

GRAIN-BINDER.

SPECIFICATION forming part of Letters Patent No. 386,905, dated July 31,1888.

(No model.)

To all whom it may concern:

Be it known that I, AMEDE'E TETRAULT, a citizen of the United States,residing at St. Paul, in the county of Ramsey and State of Minnesota,have invented certain new and useful Improvements in Grain-Binders, ofwhich the following is a specification.

My invention relates to grain-binders, and more particularly to thatpart of the mechanism of grainbinders by means of which the grain isformed into a bundle or sheaf, compressed into shape for the receptionof the binding-cord, and discharged from the binder; and it has for itsobject to render the opera tion of such mechanism positive and accurate,with less chance of getting out of order.

To these ends my invention consists in the combinations of parts,substantially as more particularly pointed out hereinafter.

Referring to the accompanying drawings, forming part of thisspecification, Figure 1 is a side view of so much of a grain-binder asrelates to my present invention. Fig. 2 is a similar view showing theparts in a different position. Fig. 3 is a plan view of these parts onthe line 1 2, Fig. 2; and Figs. 4 and 5 are perspective views ofdetached parts.

My improvement is more especially adapted to be used on a machineconstructed substantially as forth in the application of S. D. Maddin,Serial No. 171,222, and I have not deemed it necessary to show a fulloperative machine, as my invention may be readily understood by thoseskilled in the art without reference thereto.

It may be said, in general, that as the grain falls on the table it iscarried by the packers against the compressor arms until the requiredquantity to make a bundle or sheaf. is gathered, when the pressure ofthe packers upon the grain lying against the compressorarms causes themto operate a trip or clutch mechanism connected to the moving parts ofthe binder, which mechanism throws into action the devices which operatethe needle and cord-tying devices and the throw-off arms, thecompressorarms moving out of the way of the corded or tied bundle whilebeing discharged from the machine by the throw-off arms.

In operating the mechanisms, as set forth in the application abovereferred to, it has been found in practice that owing to the jolting ofthe machine and other causes the parts get out of adjustment andsometimes fail to operate in proper time and with the desiredpositiveness, and the mechanism I am about to describe is intended toovercome this and other objections.

In the drawings, the letter A designates a part of the frame-work of thebinder, and the needle-arm B is hung to a shaft, 9, rocking in bearingsupon standards connected to the frame A, one of which is shown at A.Suitable mechanism operating the needle-arm at the proper time is alsoconnected to the shaft, but is not shown in the present case.

Fixed upon a shaft, 3, supported by the standard A, are the throw-offarms 0, one only being shown in the drawings, and this shaft is alsooperated by mechanism connected with the main drivinggear of themachine.

The compressor-arms D are connected by a bolt, d, to a curved arm orlink, E, having a slot, 1, and a second bolt, (1, passes through the armE and slots 3 in the hubs of the compressor-arms D, so that the lattermay be set at the desired angle with respect to the arm E and thenclamped fixedly thereto. The compressor-arms are hung loosely to a link,F, which extends into a socket in the hub of the needle-arm B and istherein hung loosely to the needle-shaft 9. The weight of the arm D andlink E would tend to cause these parts to swing downward upon the shaft9 and to carry the compressor-arms below the table, and some means mustbe provided for locking these parts in an elevated position during thetime the grain is being sheaved or the bundle is being packed by thepackers in the usual way, the packers not being shown.

Upon a stud, A", projecting from the standard A, is fixed afriction-roll, G, and on the under side of the link E is a projectingrib, e, the end of which normally bears upon the roll G and supports thecompressor-arms in their elevated position while the bundle or sheaf isbeing formed. The needle-arm B, while the grain is being packed, bearsupon the projection F of the link F and helps to support thecompressor-arms in their elevated position, as well as to restore themto that position after the bundle has been discharged. \Nhen the armscontain a proper amount of grain to form a sheaf, the pressure of thegrain upon the arms D while being packed will cause the arms to trip asuitable clutch mechanism con nected to the driving-shaft of the machineand to operate the needle-arm B and knot-tying devices,as well as thethroW-ofis G; and H,H, and H represent a partof such trip mechanism,which need not be described herein, as it forms no part of my presentinvention and is generally understood by those skilled in the art.

As the needle-arm B moves forward after the trip mechanism has operated,it tightly presses the grain against the compressor-arms, and a lug, b,on the hub of the needle-arm comes in contact with a projection, 11, onadepressor-arm, I, pivoted to a lug on the standard A and tiltsitdownward, and its end bearing upon the upper edge of the part H of thetrip device,which is connected to the link Eby a pin, H working in theslot 3 thereof, forces the link E down, and thereby causes thecompressor arms to swing upon the link F and to approach theneedle-arnngiving the bundle an extra pressure from both sides, and thispressure is maintained until the rib e passes below the friction-stud G,when the compressor-arms slide down under the table to allow the bundleto be discharged, the rib 6 serving to give proper direction to themovements of the compressor, insuring that it shall swing With link Faround shaft 9 asa pivot, instead of around pivot d, as it otherwisemight.

1f from any cause the link E should rise when the pressure of theneedle-arm is released as it retires to its normal position and remainin its locked position, one of the throw-off arms 0 is provided with alug, c, on its hub, which engages with the projection t" on the hub ofthe arm I and again depresses the said arm, so as to insure itsretraction as the bundle is discharged.

It will thus be seen that the action of the compressorarms is positive,both in its movement to give the binder or sheaf an extra compression atthe moment the knot is tied and to depress the link from its lockedposition to allow the arm to retire below the platform.

Having thus described my invention, WhatI claim is 1. In a grain-binder,the combination, with the needle-arm, of compressor-arms, a link, as F,connecting the arms to the shaft of the needle arm, a depressor-armpivoted to the frame at one end adjacent to the hub of the needlearm,and connecting mechanism between the needle-arm and depressor arm,whereby the latter is moved by the needle-arm to force thecompressorarms toward the needle-arm, substantially as described.

2. In a grain-binder, the combination, with the main frame carrying afixed lug, of the needle-arm, a compressor-arm, a link on which thecompressor-arm is loosely hung, an arm connected fixedly to thecompressor-arm to cause them to move together, and carrying an offsetarranged to bear against said fixed lug to lock the compressor-arm inits elevated position, and an intermediate arm bearing on the armconnected to the compressor,.said parts being arrangedsubstantially asdescribed,

whereby as the knot is being tied said intermediate arm bears upon andmoves the arm connected to the compressor out of engage- .ment with thefixed lug, and at the same time forces the compressor toward the gavelto produce a final compression.

3. In a grain-binder, the combination, with the main frame provided witha fixed lug adapted to carry an anti-friction roller, G, of theneedle-arm, a compressor arm, a pivoted link on which the compressor isloosely hung,

arm E, connected to the compressor and carrying a projecting offset orrib, e, the endot' which normally bears against the said roller,

and thereby supports the compressor-arm in v its elevated position, anda trip device which forces the end of the rib 6 out of engagement withroller G, which then rides upon the upper face thereof and permits thecompressor to fall, substantially as described.

4?. The combination, with the needle-arm.

having a lug, b, of a depressor-arm, I, having a projection, i, wherebythe ing of the needle bar engages with the projection upon the depressorarm and forces the latter downward, substantially as described.

5. The combination, with the throw-off arm 0, having a lug, c, on itshub, of the depressorarm I, having a projection, 13, engaging with thelug c, substantially as described.

6. The combination, with the compressorarmsD and the curved arm E,supporting the compressor-arms, of a depressor-arm, I, hav- Witnesses:

FRANK O. OLIVIER, E. W. BAZILLE.

